Hoisting-machine.



C. F. DALLMAN.

HOISTING MACHINE.

APPLICATION FILED JUNE 30,1908.

Patented Jul 20, 1909.

4 SHEETS-SHEET 1.

WITNESSES INVENTOH y f 4 Chains/T Baum/w,

I I BYW av I I A 770/?)VE rs- G. P. DALLMAN.

HOISTING MACHINE.

APPLICATION FILED JUNE 30,1908.

928,85 1 Patented July 20, 1909.

4 SHEETS-SHEET 3.

WITNESSES INVENTOI? A TTO/PNEYS c. F. DALLMAN.

HOISTING MACHINE.

APPLICATION FILED JUNE 30,1908.

928,85 1. Patented July 20. 1909.

4 SHEETS-SHEET 4.

ATTORNEYS UNITED STATES CHARLES F. DALLMAN, OF ANTIGO, WISCONSIN.

HOISTING-MACHINE.

Specification of Letters Patent.

Patented July 20, 1909.

Application filed June 30, 1908. Serial No. 441,067.

To all whom it may concern:

Be it known that I, CHARLES F. DALLMAN, a citizen of the United States,and'a resident of Antigo, in the county of Langlade and State ofWisconsin, have invented certain new and useful Improvements inHoisting- Machines, of which the following is a specification. I

My invention is an improvement in hoisting machines, and consists incertain novel constructions and combinations of parts hereinafterdescribed and claimed.

Referring to the drawings forming a part hereof Figure 1 is a side viewof the improvement. Fig. 2 is a plan view. Fig. 3 is a artial side viewfrom the opposite side to ig. 1. Fig. 4 is section on the line 4-4 ofFig. 2. Fig. 5 is a longitudinal section of the drum. Fig. 6 is a detailin perspective of a part of the controlling mechanism.

The present embodiment of my invention comprises a frame, composed oflongitudinal bars 1, and connecting cross bars 2, supported by wheels 3journaled on shafts 4, arranged transversely of the frame, and journaledin the longitudinal bars 1. The frame is braced by braces 5, and issecured together by bolts 6. A shaft 7 is journaled in bearings 8 on thecross bars, and upon the shaft are keyed disks 9, in spaced relation,each of said disks being provided with an outwardly projecting flange10, and a plurality of staves 11, constituting a drum 11 are arrangedlongitudinally of the shaft, and are secured to the flanges by bolts12-, the staves being arranged in side-wise abutting relation.

A friction ring 13 is secured to the drum at each end thereof by woodscrews 14 traversing a ring, and engaging the staves of the drum, andthe outer ends of the friction rings are beveled as at 15, the bevelededge being adapted to engage the beveled edge of flanges 17 on gearwheels 18, 18 journaled loosely on the shaft adjacent to each end of thedrum.

The outer end of the shaft 7 has journaled thereona block 19, the blockbeing secured inplace by a nut 20, and being provided with oppositelydprojecting trunnions 21, which are receive in openings in plate 22,secured to each side of a bar 23, by bolts 24, the lower ends of thelates being journaled on a bolt 25, passin t rough oppositely arrangedears 26, on a racket 27, secured to one of the cross bars. The upper endof the bar 23 is provided with a gri 28, and it will be evident that byswinging t e bar the drum may be moved longitudinally whereby to engagea friction ring with one of the gears 18 or 18*.

A second shaft 30 is journaled in bearings 31, on the cross bar, and isprovided adjacent to each end with a pinion 32, 33, one of which 33,meshes with a wide pinion 34, loosely mounted on a shaft 35, to beresently described, the said wide pinion mes ing also with one ofthegear wheels 18 on the drum shaft. The other pinion 32 meshes with thegear wheel 18, and the shaft 30 is provided on its outer end with a gearwheel 36, meshing with a pinion 37 on a shaft 38, journaled in bearings39 on the frame, and provided at its outer end with a pulley 40, wherebyit may be connected with a suitable source of ower, the shaft 38 beingalso provided wit a crank arm 41, for connection directly with a motorsupported on the frame.

The shaft 35 before mentioned, is provided on its outer end with abracket 42, having a socket 43 for receiving the shaft, and securedthereto by set screws 44, and to the bracket is connected a lever 45, bymeans of bolts 46, the outer end of the lever being rovided with a footplate 47,whereby the s aft 35 may be oscillated. The shaft 35 is alsoprovided with a crank arm 48, keyed there on, with which is connected abrake band 49 encircling one of the friction rings 13 before mentioned.The wide pinion 34 is prevented from longitudinal movement on the shaft35, by means of a collar 49, secured to the shaft by a set screw 50. 1

The hoisting rope 51, winds upon the drum, encircling the same withthree or four loops whereby to prevent slipping of the rope, and thefree ends thereof are carried upwardly over a pulley 51 j ournaled in asuperstructure 52, to t e place where the power is to be ap lied.

11 Figs. 1 and 6, is shown a mechanism for controlling the drum from adistance, the said mechanism com )rises a three armed lever 53, pivotedto t e superstructure as at 54, one of the arms being provided with agrip 55. A rope 56 passes through openings in the ends of the other arms57, and 58, and through an eye 59, on the arm provided with the grip,the ends of the rope'being carried downward under a pulley 60, one ofthesaid ends being connected to each end of a lever which is j ournaled ina bearing on a cross bar 64, supported by a pair of spaced uprights 65connected with the frame. The stud shaft is provided with an arm 67,having a plurality of perforations 68 in the free end thereof, with oneof which is engaged the angular end of a link 69, provided at its otherend with an eye 70, engaged by an eye bolt 71, passing through the lever23, the angular end of the link being secured in place by a cotter pin72.

It will be evident from the description, that when the lever 53 isrocked, the drum will be moved to engage it with one or the other of thegear wheels 18 or 18.

A foot lever 73 is pivoted as at 74 to the superstructure, one end ofthe lever being provided with a foot piece 75, and to the other isconnected a rope 76, passin downwardly through a clamp 77 on the fever45 before mentioned, so that when the. treadle end is rocked, the lever45 will oscillate the shaft 35, to ap ly the brake to the drum. Whenoperatin t e brake lever 45 at the drum, the said Iever would be placedin the position shown in dotted lines in Fig. l.

A toothed rack 78 is provided for retaining the lever 73 in its adjustedposition. In operation, power being applied to the shaft 38, motion istransmitted to the shaft 30. By manipulating the lever 23, the frictionrings of the drum may be engaged with the gear wheels 18 or 18*, the one18 being driven directly from the shaft 30, and the other being drivenin the o posite direction through the idler 34, whereby to rotate thedrum 1n one or the other direction.

By placing the drum in the intermediate position shown in Fig. 5, itwill be disengaged from both gear wheels, and will conseq uentl remainat rest, being held in this position y the brake. From the mechanismshown in Figs. 1 and 6, the 0 eration of the drum may be perfectlycontro led from a distance.

The device described is for use wherever a hoisting drum'is desired, forraising orlowering loads, the'f'powergbeing applied throughthe shaft 38,which through its connection with the shaft 30 rotates the gear wheelsat each end of the drum. When it is desired to turn the drum in onedirection, the lever 24 is moved to move the drum lon itudinally,whereby to engage said drum wien one or the other of the gear wheels,depending upon the desired direction of rotation of the drum. When theobject has been elevated or lowered as the case may be, the drum may bereleased from the earwheel and held by the brake. The mechanism shown inFigs. 1 and 6 is arranged to operate the drum from a distance, as forinstance from another floor of the building, the operation of the drum Ibeing the same whether it is manipulated 61, rigid with the upper end ofa stud shaft 62, i

directly by the lever 23 or intcrmediately by the lever 53.

I claim:

.1. In a hoisting machine, a frame, a shaft j ournaled in the frame, adrum secured to the shaft, said drum being provided at each end withfriction rings, beveled toward their outer ends, gear wheels journaledon the shaft, at each end of the drum, and having a beveled flange forcooperating with the beveled surfaces of the rings, means for movingsaid shaft longitudinally, whereby to engage it with either gear wheel,means for driving said gear wheels in opposite directions, a brake bandencircling one of the rings, a shaft to which the ends of the band aresecured, and means for oscillating the shaft whereby to apply the brake.

2. n a hoisting machine, a shaft, a drum secured to the shaft, said drumbeing rovided at each end with a beveled su ace, gear wheels j ournaledon the shaft near each end of the drum, and provided with beveledflanges for cooperating with the beveled surfaces, means for moving saidshaft longitudinally, whereby to engage the drum with either of saidgears, means for driving the gears in opposite directions, and a brakefor the drum.

3. In a hoisting machine, a shaft, a hoisting drum secured to "theshaft, a gear wheel journaled on the shaft, at each end of the drum,means for driving said wheels in opposite directions, a pivotallymounted lever, a block journaled on the end of the shaft, and providedwith trunnions engaged by the lever, and means in connection with theends of the drum and the gear wheels for locking said drum to the gearwheels.

4. In a hoistin machine, a shaft, a hoisting drum, secure to the shaft,a gear wheel journaled on the shaft, at each end of the drum, means fordriving said wheels in opposite directions, a pivotally mounted lever, ablock journaled on the end of the shaft, and provided with trunnionsengaged by the lever, and means in connection with the ends of the drumand the ear Wheel for locking said drum to one of t e wheels, a linkconnected with the lever, a rock shaft having one arm connected with thelink, a bar secured to the other end of the rock shaft, and projectingon each side thereof, a three armed ever pivotally mounted at a distancefrom the drum, a connection between the two arms of the lever, and therespective ends of the bar, the other arm of the lever being prorangedin edge-wise abutting relationzand secured to the flanges, frictionrings secured to staves arranged longitudinally of 'the shaft and insidewise abutting relation and secured to the disks, a gear Wheel ateach end of the drum, means for connecting the drum with either of thewheels, and means for driving the wheels in opposite directions.

7. In a hoisting machine, a shaft, a drum secured to the shaft, a gearwheel journaled on the shaft at each end of the drum, said drum beingprovided at each end with a fricarm tion surface, and wheels withbeveled flanges for cooperating with the adjacent friction surface,means for driving the wheels in 0 .posite directions, and means'formovingt e drum lon itudinall whereb to e e it with eithe r of said zvheels. y

8. In a hoisting machine, a hoisting drum,

means at each end of the drum fordriving the same in oppositedirections,a lever for moving the drum longitudinally whereb to engageit with either of said means, a t ree ever from the. rum, and aconnection between two of' the arms of the three arm lever and theoperating lever for the drum, whereby to operate the same.

CHARLES F. DALLMAN.

Witnesses:

Loom E. FREDERICKSEN, J. F. WILHELM KUrPER.

ivotally mounted at a distance-

